Mark Stone scored the overtime winner on Thursday to eliminate Switzerland and launch Canada into the World Championship semifinals.

The Canadians barely survived regulation, however, and needed a dramatic last-second scramble to force the extra frame.

With Canada down 2-1 late in the third period, Damon Severson fired a point shot that trickled over the goal line to tie the game with 0.4 seconds on the clock.

Stone's game-winner was his second tally of the contest and seventh of the tournament, moving him into a tie with Anthony Mantha - who did not play against Switzerland due to his one-game suspension - for the team lead.

Pierre-Luc Dubois had a pair of assists in the win, and Dante Fabbro, Shea Theodore, and Stone added helpers of their own. Matt Murray turned aside 22 shots to record his fourth win for Canada.

Sven Andrighetto opened the scoring for Switzerland with the lone first-period tally and Nico Hischier potted his fourth goal of the tournament.

Canada has now won seven straight contests heading into the semifinals.

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